March 20th, 2025

Another Round of Rust Compiler Improvements Merged for GCC 15.1

GCC 15.1 has merged 144 patches to enhance Rust support, including Polonius borrow checker fixes and lowering the minimum Rust version to 1.49, with a stable release expected soon.

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Another Round of Rust Compiler Improvements Merged for GCC 15.1

Recently, 144 patches were merged into the GCC 15 codebase to enhance the Rust "gccrs" front-end, following an earlier batch of 145 patches. These updates include improvements to the Polonius borrow checker, fixes for various issues, and a reduction of the minimum Rust version to 1.49. This change aims to enable GCC to compile its own Rust component in the future. Arthur Cohen from Embecosm highlighted that this patchset addresses several required attributes in Rust's core crate, enhances inline assembly handling, and implements multiple type-system fixes. The ongoing development is focused on improving support for various distributions and ensuring that the Rust component of GCC becomes more mature. The stable release of GCC 15.1 is anticipated in the coming weeks, with continued efforts to refine the compiler's capabilities.

- 144 patches merged for GCC 15.1 to improve Rust support.

- Enhancements include fixes to the Polonius borrow checker and type-system adjustments.

- Minimum Rust version lowered to 1.49 to facilitate future development.

- Ongoing work aims to improve compatibility across distributions.

- GCC 15.1 stable release expected soon.

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